Rank	Countries/Territories	Count	Percent
1	United States	329	43.5%
2	China	250	33.1%
3	Germany	61	8.1%
4	Korea, Republic of	11	1.5%
5	Japan	9	1.2%
6	Canada	9	1.2%
7	Singapore	8	1.1%
8	Norway	8	1.1%
9	France	7	0.9%
10	India	6	0.8%
11	Netherlands	6	0.8%
12	United Kingdom	5	0.7%
13	Iran, Islamic Republic of	5	0.7%
14	Australia	5	0.7%
15	Russia	4	0.5%
16	Poland	3	0.4%
17	Spain	3	0.4%
18	Switzerland	2	0.3%
19	Taiwan	2	0.3%
20	Turkey	2	0.3%
21	South Africa	2	0.3%
22	Bangladesh	2	0.3%
23	Brazil	2	0.3%
24	Denmark	2	0.3%
25	Cyprus	2	0.3%
26	Hong Kong	2	0.3%
27	Malaysia	2	0.3%
28	Lebanon	1	0.1%
29	Ireland	1	0.1%
30	Czech Republic	1	0.1%
31	Argentina	1	0.1%
32	Ukraine	1	0.1%
33	Pakistan	1	0.1%
34	Philippines	1	0.1%